1 Department of Urology, Zealand University Hospital, Roskilde, Denmark; Department of Urology, Herlev and Gentofte Hospital, Herlev, Denmark. Electronic address: mimf@regionsjaelland.dk.
2 Department of Urology, Herlev and Gentofte Hospital, Herlev, Denmark.
3 Department of Urology, Zealand University Hospital, Roskilde, Denmark.